She was commissioned into the German Imperial Navy on 25 April 1918 as SM UB-113.

[2] According to recent sources, SM UB-113 probably crossed paths with the French gunboat l'Engageante on 29 August in the Gulf of Gascony and was sunk.

Occasional confusion with the SM UB-123, which also met a mysterious fate, remains.

Like all Type UB III submarines, UB-113 carried 10 torpedoes and was armed with an 8.8 cm (3.46 in) deck gun.

UB-113 would carry a crew of up to 3 officers and 31 men and had a cruising range of 7,420 nautical miles (13,740 km; 8,540 mi).